The room and host's service were good for the price. I can recommend you to stay here. However, I'll explain their location for future guests as some of the former guests complained for their location.
There are two similarly named roads "Soi Phahonyothin 5" and "Soi Phahon Yothin 5" very closely.
https://www.google.co.jp/maps/place/Bangkok,+Thailand/@13.7779229,100.5418648,18z/data=!4m5!3m4!1s0x311d6032280d61f3:0x10100b25de24820!8m2!3d13.7563309!4d100.5017651

"Soi Phyahonyothin 5", the gray colored road is where they are. There is a car stop gate and a gate keeper. Each houses got their own number and house No. 10 is their place. Good luck!